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A 500-N weight sits on a small piston of a hydraulic machine.The small piston has area 2.0 cm^2. If the large piston has area of40 cm^2, how much weight can the large piston support?
This problem introduces the concept of tension. The instance is a rope, oriented vertically, that is being pulled from both ends. Let and (with u for up and d for down) represent the magnitude of the forces acting on the top and bottom of the rope..
Ground and Cloud The electric potential differencebetween the ground and a cloud in a particular thunderstorm is2.5 multiplied by 109 V. What is the magnitude ofthe change in the electric potential energy (in multiples ofelectron-volts) of an elec..
Briefly describe how the resulting interference pattern will differ for the various types of particles passing through: protons, electrons, neutrinos (mass close to zero) and photons. Assume that the distribution of particle energies is the same f..
A thin rod consists of two parts joined together. One-third of it is silver and two-thirds is gold. The temperature decreases by 31.3 C°. Determine the fractional decrease ?L/(LSilver + LGold) in the rod's length, where LSilver and LGold are the init..
A 3.8-kg block of iron (c=0.11 kcal/kgoC) that has been brought to a temperature of 1,078oC is placed on top of a 2.4-kg block of ice (c=0.5 kcal/kgoC) that has been cooled to -50oC
A ferries wheel with radius 20 m which rotates counterclockwise, is just starting up. Find the magnitude of the passenger's acceleration at the instant
An electrically neutral model airplane is flying in a horizontal circle on a 3.0m guideline, which isnearly parallel to the ground. The line breaks when the kineticenergy of the plane is 50.0 J. Reconsider the same situation, except that nowthere ..
The rotating sprocket tip at the end of the guide bar has a radius of 0.0343 m. Find the angular speed of the sprocket tip
The common isotope of uranium, 238U , has a half life of 4.50 x 109 years, decaying by alpha emission. a) What is the decay constant? b) What mass of uranium would be required for an activity of one Curie? c) How many alpha-particles are emitted p..
an automobile tire is pumped up to a gauge pressure of 2.0 x 105 pa when the temperature is 27 degc. what is its gauge
A converging lens (f = 36.9 cm) is used to project an image of an object onto a screen. Find the two object distances
An engine draws energy from a hot reservoir with a temperature of 1250 K, What is the actual efficiency of this engine
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